Archive | Uncategorized

Packet Radio with the Raspberry Pi

Packet Radio TNC with the Raspberry Pi The Pi plus a USB soundcard is all you need to get started with Packet Radio. Instead of using a dedicated hardware TNC, the Pi can be coaxed to do the hard work of managing the Packet protocol. Full instructions can be found on the WB2OSZ’z website at: […]

Continue Reading 0

Recover Damaged Mac HFS+ disk with Linux

A friend of mine recently set me a challenge to recover 2TB of photo files from a Mac external drive that had failed. Fortunately, it was the USB to SATA converter that failed, so I could extract the bare drive from the case and access it using a SATA docking station. Problem 1 – Accessing […]

Continue Reading 0

bhi ParaPro EQ20-DSP Sound file

The following audio files have been provided to support my reviews of the bhi ParaPro EQ200-DSP power amplifier with noise reduction and parametric filtering. The first recording shows an aeronautical VOLMET signal as folows: 0-20 seconds – Origian signal 20-40 seconds –  DSP Noise filter set to the mid position 40-60 seconds – DSP Noise filter […]

Continue Reading 0

137MHz Polar Orbiting Weather Satellites

In my Radio User Decode column I’ve been describing a receiving station for the NOAA polar orbiting weather satellites and in this post I’m including a few examples so you can see the station’s capabilities. All the images are taken directly from WXtoImg with no other enhancements. The station here comprises the following: QFH Antenna as […]

Continue Reading 0

QFH Antenna Mast Drilling Template

Bill Sykes and Bob Cobey have produced of the best home-build designs for a weather satellite antenna on their web site at: QFH Antenna. Their instructions are easy to follow and the result is a robust QFH antenna that is tuned for the centre of the 137MHz weather satellite band. The only problem I encountered was […]

Continue Reading 0

Using a ThermApp Camera with a Raspberry Pi-3

In this tutorial, I’ll show you how to install the software required to use the ThermApp thermal camera with the Pi. Once installed, you will be able to display thermal images using a standard video player such as VLC, mplayer, etc. Start with a fresh download of the latest Raspbian operating system. These instructions are based […]

Continue Reading 1

MotionPie Links

It seems the shortened MotionPie links I provided in my RadCom article are not working. I don’t know the cause of the problem yet but I’ve posted the full links below: MotionPie Download SDcard Formatter Win32DiskImager Sorry  for any inconvenience. Mike

Continue Reading 0

motionPie Server Available

I’ve just completed a brand new SD card image that contains the motionPie software, operating system and comes with 5-pages of printed instructions. motionPie can handle the Pi camera, USB or network webcams and is a great way to set up a home security surveillance system or maybe keep an eye on outbuildings. As the name suggests […]

Continue Reading 0

Powered by WordPress. Designed by WooThemes